EP 0987053 A1 20000322 - Ventilation system with air/oil coalescer with centrifugally assisted drainage
Title (en)
Ventilation system with air/oil coalescer with centrifugally assisted drainage
Title (de)
Ventialtionssystem mit Coalescer zum Trennen von Öl-Luft-Gemischen mit fliehkraftunterstützter Entwässerung
Title (fr)
Système de ventilation à coalesceur pour séparer l'huile de l'air pourvu de drainage assisté par centrifugation
Publication
Application
Priority
US 15701998 A 19980918
Abstract (en)
A coalescing filter for separating oil from a blowby gas stream includes a coalescing filter element (24) designed with a plurality of relatively small flow-through pores which have the potential for creating a high restriction when wetted due to the surface tension which results. In order to reduce the restriction level, the coalescing filter is attached to a rotating component (25), such as a gear, so that rotary motion is imparted to the coalescing filter and centrifugal force is generated across the plurality of flow-through pores. By generating centrifugal force, any oil which might otherwise remain in said pores so as to clog the pores is spun out so that the pores of the coalescing filter element remain in a "dry" condition such that any restriction to continued flow is substantially lower than the restriction level which is present when the pores are wetted. <IMAGE>
IPC 1-7
IPC 8 full level
B01D 45/14 (2006.01); B01D 46/26 (2006.01); F01M 13/04 (2006.01)
CPC (source: EP US)
B01D 45/14 (2013.01 - EP US); B01D 46/003 (2013.01 - EP US); B01D 46/0056 (2013.01 - EP US); B01D 46/0087 (2013.01 - EP US); B01D 46/521 (2013.01 - EP US); F01M 13/04 (2013.01 - EP US); B01D 2275/201 (2013.01 - EP US); F01M 2013/0422 (2013.01 - EP US); F01M 2013/0438 (2013.01 - EP US)
Citation (search report)
- [XY] EP 0649997 A1 19950426 - BOC GROUP PLC [GB], et al
- [Y] US 5669366 A 19970923 - BEACH DONALD W [US], et al
- [Y] EP 0073895 A1 19830316 - WHITE SALES CORP GRAHAM [US]
- [X] US 4189310 A 19800219 - HOTTA SHIEGO [JP]
- [X] US 5716423 A 19980210 - KRUL ALLAN D [US], et al
- [X] US 3993564 A 19761123 - NOVAK RICHARD A
- [X] FR 2700124 A1 19940708 - SENDRA GILLES [FR]
- [X] DE 19705807 C1 19980716 - EHA ENTSTAUBUNGSANLAGEN GMBH H [DE]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0987053 A1 20000322; EP 0987053 B1 20040506; AU 4877999 A 20000323; AU 748637 B2 20020606; DE 69916955 D1 20040609; DE 69916955 T2 20050421; US 6139595 A 20001031
DOCDB simple family (application)
EP 99307370 A 19990916; AU 4877999 A 19990917; DE 69916955 T 19990916; US 15701998 A 19980918